Analysis of Surface Texturing of Silicon with Surface Regular Microstructure Using C Method

Hamid Reza Dehghanpour, Parviz Parvin, Seyedeh Zahra Mortazavi, Ali Reyhani, Amin Chegenizadeh and Mohammadreza Aghaei
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Hamid Reza Dehghanpour: Department of Physics, Tafresh University, Tafresh 39518-79611, Iran
Parviz Parvin: Energy Engineering and Physics Department, Amirkabir University of Technology, Tehran 15119-43943, Iran
Seyedeh Zahra Mortazavi: Department of Physics, Imam Khomeini International University, Qazvin 34149-16818, Iran
Ali Reyhani: Department of Physics, Imam Khomeini International University, Qazvin 34149-16818, Iran
Amin Chegenizadeh: Energy Engineering and Physics Department, Amirkabir University of Technology, Tehran 15119-43943, Iran
Mohammadreza Aghaei: Department of Ocean Operations and Civil Engineering, Norwegian University of Science and Technology (NTNU), 6009 Alesund, Norway

Energies, 2022, vol. 15, issue 20, 1-13

Abstract: Silicon, as the most abundant element in the earth’s crust and the most common material used in electronic and optical equipment, has attracted the attention of many individuals to change the properties of this material, improving its electronic and optical properties. One of these efforts relies on the reduction of surface reflection by making use of different methods. However, among them, the use of lasers in creating surface microstructures has been of special importance because there is no need for masks and other additional materials. In this work, a theoretical method is utilized to analyze these textures with the theorem of diffraction grating on a micrometer scale. The surface reflection of the microstructure created by excimer laser exposure on a silicon surface is simulated. The theoretical Coordinate transformation method (C method) gives out notable results against the experimental records by approximating triangular and trapezoidal microstructures. The model is useful for predicting the reflective response of the modified microstructural morphology. One of the main applications is the texturing of the solar cell front faces to enhance their efficiency, mainly due to photon trapping.

Keywords: surface microstructure; silicon; excimer laser; grating; C method (search for similar items in EconPapers)
JEL-codes: Q Q0 Q4 Q40 Q41 Q42 Q43 Q47 Q48 Q49 (search for similar items in EconPapers)
Date: 2022
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